Finding the Fourth Proportional to 2,609.74, 3,601.29 and 1,430.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,609.74 : 3,601.29 = 1,430.61 : x
2. Step 2: Convert to fraction form
   2,609.74/3,601.29 = 1,430.61/x
3. Step 3: Cross multiply
   2,609.74x = 3,601.29 × 1,430.61
4. Step 4: Simplify right side
   2,609.74x = 5,152,041.49
5. Step 5: Solve for x
   x = 5,152,041.49/2,609.74
6. Step 6: Final answer
   x = 1,974.16